Moser and Pommeranz: Distribution of eggs and larvae of Engraulis mordax 



933 



29 32 35 38 41 44 47 50 53 56 59 62 



28 31 34 37 40 43 46 49 52 55 58 61 

 30 33 36 39 42 45 48 51 54 57 60 63 



Tow number _ 



t , ' 1 



^ 40-80 

 E 



ra 80-120 



9- 120-160 



a 



SX3 



—I — 



100 



200 250 100 200 300 400 500 



Larvae/ 1000m3 



Figure 13 



Genyonemus lineatus larvae (no./lOOO m^l in MESSHAI tows. Average from (A) deep and (Bi 

 shallow tows at inshore (solid) and offshore (shaded) stations; (C) densities in 0-40 m stratum 

 from sequential deep tows at inshore station; (D) densities m 0-40 m stratum (average of pooled 

 10-m strata) from sequential shallow tows at inshore station; average from (E) deep and (F) 

 shallow tows at inshore station before storm (cross-hatching) and after storm (hatching). 



samples. At the inshore station, lai-val densities were 

 comparatively low in prestorm samples but increased 

 markedly after the storm (Fig. 17, C-F). 



Paralichthys californicus larvae California halibut 

 larvae occurred only at the inshore station and were 

 restricted to the upper 30 m of the water column ( Fig. 

 18, A and B). Average larval density was highest in 

 the 0-10 m stratum, where it was four times higher 

 than in the 20-30 m stratum or at the surface (Fig. 

 18B). Larvae appeared in several of the shallow 



MESSHAI tows prior to the storm at densities as 

 high as approximately 20 per 1000 m^; after the 

 storm, densities increased steadily to more than 60 

 per 1000 m'^, then decreased to prestorm levels within 

 2 days following the storm (Fig. 18D). Average 

 poststorm larval density for the 10-m stratum was 

 more than 7 times higher than prestorm density, and 

 overall vertical distribution was slightly shallower 

 in poststorm samples (Fig. 18F). Larvae occurred in 

 Manta net samples only in poststorm tows. 



